Explosive-engine.



R. E. WBTZEL. EXPLOSIVE ENGINE. APPLICATION FILED PEB. a, 1912.

l, 1 l 6,774. Patented Nov. 10, 1914.

2 SHEETS-SHEET l` Witnesses 'i lnyentor Attorneys R. E. WETZEL. BXPLOSIVE ENGINE. APPLICATION FILED 1113.8, 1912.

1,1 1 6,774. Patented Nov/10, 1914.

2 SHEETS-SHEET 2.

Witnesses Inventor Attorneys UNITED STATES. PATlQNT OFFICE.

RHEEM E. WETZEL, OF MOWEAQUA, ILLINOIS.

EXPLOSIV-ENGINE.

` Tp all whom it may concern.'

Be it known that I, RHnnM E. VVF/ram., a citizen of the United States, residing at Moweaqua, in the county of Shelby and State of Illinois, have invented a new and useful'Explosive-Engine, of which the following is a specification. i

The present invention relates to improvements in explosive engines, the primary object of the invention being the provision of an explosive engine provided with an intake and exhaust chamber in communication with the piston chamber of the engine, each of the respective intake and exhaust chambers being provided with an individual slide valve o erably connected through a lever operate mechanism so that the intake of the charge will be timed properly with the downastroke and compression stroke of the piston, while the exhaust valve will be properly timed to permit the escape ofthe burnt gases upon the explosive and exhaust stroke of said piston.

further object of the present invention is the proper arrangement and construction of a slide valve controlled explosive eharge intake, and a means for admitting a priming charge to permit a ready initial starting of the motor.

A still further object4 of the presentinvention is the provision of a novel form of slide valve, one for the intake and another for the exhaust, each one of which is controlled by a lever, which itself is operated by ai cam mechanism operably connected with the crank shaft of the motor, so that the operation of the respective pistons and valves will be in proper time to insure the proper admission of the explosive charge and the exhausting of the burnt gases.

With the foregoing and other objects in` view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawings-Figure 1 is a transverse sectional view through a single cylinder and through the intake chamber thereof with the valve in closed position and the power iston at highest point of compression.

ig. 2 is a similar view through the exhaust Patented Nev. 1o, i914.

chamber with the valve closed. Fig. 3 is e section taken on line 3"?) of Fig. 1. Fig. 4- is an enlarged detail sectional view of the intake chamber `of a cylinder, showing the positioning of the priming device. Fig. 5

is ar perspective view of the priming devicej 'i actuator and controller.

Referring to the drawings, the numeral 1 designates the base of the engine, the lower portion of which is the oil reservoir 2, having the indicating tube 3 with the iioat valve actuated indicator 4, while the crank case 5 forms a receptacle for the lubricant which is splashed to lubricate the various parts of the mechanism, the drip or outlet 6 being so positioned as to permit the overflow of oil" into the reservoir 2. Mounted in the crank case is a pump cylinder 7 having mounted therein a plunger 8 controlled by the stem 9, a roller 10 being carried upon the upper end of said stem, while the spring 11 is sowf disposed as to normally hold the plunger 8 elevated. Leading from the pump cylinder into the oil within the reservoir 2 is the supply pipe 12, whose upper end is provided with a check valve 13, While leading from the lower end of the pump cylinder 7 is a check valve 14, whereby the reciprocation of the plunger 8 will elevate the oil from the reservoir 2 through the conduit 12 and finally eject the same into the crank case 5.

The upper portion 15 of the base of the engine has connected thereto the respective cylinders 16, which are preferably five in number and are water jacketed as at 17 and have disposed therein the respective pistons 18, each one of which is connected by a rod 19t@ its respective crank 20.

Carried upon the lower end of each of the rods 19 is the oil splashing lug Q1 which is disposed to enter the oil retained within the crank case to one ,side of the outlet 6 and y produce the desired splash lubrication to the moving parts within the engine base and otl'r'r open portions of the englne.

Formed integral with the side of the cyl-l inders 16 are the two lugs 22 and 22., one p air to each cylinder while pivoted intermediate their ends to said lugs are the respective actuating levers 23 and.23, the

lever 23 being the)intake valve actuating lever while the lever 2.3 is the exhaust valve actuating lever. These two levers are .mounted for reciproeation within the lever carrying casing 24, the lower end of which is in communication with the base and adjacent to its respective cylinder, so that the oil may be splashed within the same to lubri cate the moving parts.

The' lower end of each 1 23 d 23, of the respective evers an is provided with pins and rollers 25 which lit within the cam slots, -26 and 26 lof the respective cams 27 and 27, there being one cam to each lever mounted upon the counter shaft F which isv connected to and properly timed for opera-- tion through the crank shaft G. Each one of the respcctivecam slots 26 of the intake :cam 27 is provided with the straight portion a, the two oppositely curved portions b and the shoulder portion c, the purpose of which will later appear.

The upper ends 29 and 29 of the respective levers 23 and 23 are mounted within .35 being controlled by the valve 31 as the same is moved by its actuating lever 23 and cam 27 The explosive charge admitted through the lport 35 into the chamber 32 enters the upper end of the explosive chamber of its respective cylinder through the port d. while the exhaust charge exhausts through the port f into the exhaust cham ber 32 and through its port 37 controlled by the valve 31. into the auxiliary exhaust chamber 3S and finally through the exhaust manifold 39.

Disposed in the upper end of the cylinder and projecting into the explosive or intake chamber 32 is the'spark plug 36, whereby the explosive charge may be ignited at the highest compressive stroke of the piston.

It will be noted that the cam 27 which controls the exhaust valve actuating lever 23 is provided with a earn recess 26 which is of a slightly different shape from the cam recess 26 of the intake lever control cam 27. By this means the complete ejection o'f the burnt charges from the explosive chamber is accomplished, while with the construction of the cam 27 the proper amount of explosive charge is admitted and regulated to an l exactness.

In Figs. 3, 4 and 5, a priming device is shown, the priming charge being led through the conduit 40 to the respective chamber 32 of each cylinder, while mounted within the inner open end of said conduit within the intake chamber 32 is the valve 41, Whose stem 42 is properly mounted wit-hln the conduit so that the valve 41 is normally closed by the spring 43. The lug 44 connected to the valve is opcrably connected to the reduced end of the operating lever 45. The lever 45 is mounted so that the shaft 45 is the fulcrum therefor, such shaft 45 being journaled in the bracket 46 and extending through the casing so that its handle H will be in ready access to the operator. The block or end. 47 is pivoted at 48 to the end of the lever 45 remote from the valve 4l and is adapted to be moved from the full line position, as shown in Figs. 4 and 5, to the dotted line position, when it is desired to prime the engine. This movement of the H, the shaft 45, and the arm 51, which is .keyed to the shaft 45 and is pivotally connected at 50 to one end of the rod 49, whose other end is connected to the block or end 47. By this means, when it is desired to place the block or end 47 in the dotted line position and therefore at right angles to the body of the lever 45 and in the path to be engaged by the end of the valve 31, it is simply necessary to operate the shaft 45 and cause the exing or bending of the arm 51 and rod 49, the upper end of the pin 48 being projected above the lever 45 so as to limit the straightened movement of the arm 51 and rod 49 when the parts are in the full line position. With the end or block 47 in the position to be engaged by the valve .31, it is evident that when the valve moves toward the slot or port 35 to cover the same, that such end or block 47 will be abutted, and that therefore the lever 45 will be rocked so that the end 47 will be moved toward the Wall or end of the casing while the valve 41 will be removed to open the conduit 40, and permit the introduction of a priming charge into the chamber 32. As thelever 45 is tilted in this manner, the position of the end or block 47 will be moved relatively to the valve 31, so that the tendency of the valve `will be to move such end-from the dotted line to the full line position, so that each succeeding action of the valve 31 thereafter will not engage the lever 45, or its end 47. By this means the priming charge is injected directlyinto the explosive or intake chamber to insure the immediate opera tion of the piston of the respective cylinder into which the chamber 32 leads.

The shaft F and the cam 27 are driven from the crank shaft, so that the said cam is rotated once every two revolutions of the crank shaft and so that the power piston will have one power stroke in two full reciprocations, or in other words a four cycle action. When the power piston moves downwardly, the cam shaft will operate one fourth lof a turn so that the valves 31 and 31 due to the peculiar shape of the cam slots 26 and 26', will be moved the proper y distance and at the proper time, so that. the

i intake oit the gas and the discharge of the 1. An explosive motor, havinga cylinder i the upper end of which is provided with two n parallel intake and exhaust ports, a chamber having a central partition dividing the Same into two compartments, `the lower Vwall of which is rectangular, one of said compartments being an intake and explosive compartment, while the other is an exhaust com- "partment, each ot' said compartments being provided with a port in its lower wall, a rectangular valve slidably mounted in each compartment to control its respective port, a motor piston, a crank shaft, two auxiliary chambers one of which is in communication with the intake port of the intake compartment, while the other of which is in communication with the exhaust port of the exhaust compartment, a manifold in communication with each auxiliary compartment,

f and two levers one to each valve operably connected to the crank shaft for operating the valves in time.

2. An explosive engine, having a cylinder, a power piston, a crank shaft, two chambers constituting an intake and exhaust chamber disposed in parallel and in communication with the upper end of the cylinder, a valve slidingly mounted in each chamber to control the intaking of the charge and the exhausting thereof, means for operably connecting said valves to the crank shaft, and an automatic priming device mounted in each intake chamber and actuatedby the 'valve therein.

3. rlhe combination with an explosive engine, oi'l a cylinder having two parallel chambers in communication therewith, one of said chambers constituting an intake and explosive chamlicr while the other constitutes an exhaust chamber, and intake manitively, nication with the intake chamber, a norfold in communication with the intake chamber, an exhaust manifold in communication with exhaust chamber, a valve slidably mounted in each of said chambers for controlling the admission of the charge and the exhaust respec-` a priming conduit in commu mally closed valve mounted therein, and means for actuating said valve mounted in the intake chamber and in the path of to be engaged by the sliding valve to actuate the priming valve to admit a priming charge to the intake chamber. l

ll. The combination with an explosive engine, of a. cylinder having two parallel chambers in communication therewith, one of said chambers constituting an intake and explosive chamber whilei the other constitutes an exhaust chamber, an intake manifold in communication with the intake chamber, an exhaust manifold in communication with the exhaust chamber, a valve slidably mounted in each of said chambers in, a lever mounted within the intake chamber and having one end operably connected to the valve ot the priming conduit, a pivoted member carried by the other end of said lever, and'manually operable means for actuating said pivoted end to place the same in the path of to be engaged ,by the sliding valve of the intake chamber, whereby the sliding valve of the intake chamber operates the priming device.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence or' two Witnesses.

RHEEM E. WETZEL. -Witnesses y GLE'W ADAMS, M. S. AYARs. 

